Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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13 | class ContentMatcher extends AbstractMatcher |
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14 | { |
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15 | const MATCH_CONTENT_ID = 'content_id'; |
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16 | const MATCH_LOCATION_ID = 'location_id'; |
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17 | const MATCH_CONTENT_REMOTE_ID = 'content_remote_id'; |
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18 | const MATCH_LOCATION_REMOTE_ID = 'location_remote_id'; |
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19 | const MATCH_PARENT_LOCATION_ID = 'parent_location_id'; |
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20 | const MATCH_PARENT_LOCATION_REMOTE_ID = 'parent_location_remote_id'; |
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21 | const MATCH_CONTENT_TYPE_IDENTIFIER = 'content_type'; |
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22 | |||
23 | protected $allowedConditions = array( |
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24 | self::MATCH_CONTENT_ID, self::MATCH_LOCATION_ID, self::MATCH_CONTENT_REMOTE_ID, self::MATCH_LOCATION_REMOTE_ID, |
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25 | self::MATCH_PARENT_LOCATION_ID, self::MATCH_PARENT_LOCATION_REMOTE_ID, self::MATCH_CONTENT_TYPE_IDENTIFIER |
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26 | ); |
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27 | protected $returns = 'Content'; |
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28 | |||
29 | /** |
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30 | * @param array $conditions key: condition, value: int / string / int[] / string[] |
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31 | * @return ContentCollection |
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32 | */ |
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33 | public function match(array $conditions) |
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37 | |||
38 | /** |
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39 | * @param array $conditions key: condition, value: int / string / int[] / string[] |
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40 | * @return ContentCollection |
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41 | */ |
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42 | public function matchContent(array $conditions) |
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76 | |||
77 | |||
78 | /** |
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79 | * @param int[] $contentIds |
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80 | * @return Content[] |
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81 | */ |
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82 | protected function findContentsByContentIds(array $contentIds) |
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92 | |||
93 | /** |
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94 | * @param string[] $remoteContentIds |
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95 | * @return Content[] |
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96 | */ |
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97 | protected function findContentsByContentRemoteIds(array $remoteContentIds) |
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107 | |||
108 | /** |
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109 | * @param int[] $locationIds |
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110 | * @return Content[] |
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111 | */ |
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112 | View Code Duplication | protected function findContentsByLocationIds(array $locationIds) |
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123 | |||
124 | /** |
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125 | * @param string[] $remoteLocationIds |
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126 | * @return Content[] |
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127 | */ |
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128 | View Code Duplication | protected function findContentsByLocationRemoteIds($remoteLocationIds) |
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139 | |||
140 | /** |
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141 | * @param int[] $parentLocationIds |
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142 | * @return Content[] |
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143 | */ |
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144 | View Code Duplication | protected function findContentsByParentLocationIds($parentLocationIds) |
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158 | |||
159 | /** |
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160 | * @param string[] $remoteParentLocationIds |
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161 | * @return Content[] |
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162 | */ |
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163 | View Code Duplication | protected function findContentsByParentLocationRemoteIds($remoteParentLocationIds) |
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174 | |||
175 | /** |
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176 | * @param string[] $contentTypeIdentifiers |
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177 | * @return Content[] |
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178 | */ |
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179 | View Code Duplication | protected function findContentsByContentTypeIdentifiers(array $contentTypeIdentifiers) |
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193 | } |
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194 |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.